motan与zookeeper框架

新浪科技讯 2016年5月10日，微博方面宣布，支撑微博千亿调用的轻量级 RPC 框架 Motan 正式开源了。微博技术团队希望未来能有更多优秀的开源人入驻，并进一步完善优化。

搭建新浪RPC框架motan Demo：http://blog.csdn.net/linuu/article/details/53115290

motan是新浪微博开源的RPC框架，github官网是：https://github.com/weibocom/motan

今天就先搭建一个Hello world demo，本demo基于motan 0.2.1版本

首先先去github下载源代码（motan-manager报错请忽略，eclipse的web Module不兼容）：

motanä¸zookeeperæ¡æ¶

选中motan下的pom.xml,进行编译打包：

motanä¸zookeeperæ¡æ¶

下载源码编译打包的目的有三个：

1）下载源代码可以方便源代码阅读学习

2）下载到motan.xsd,因为motan与spring进行了继承，有了自己的schema，eclipse会不识别，会导致xml报错，跟dubbo的配置文件报错一个道理

3）打包获取到motan-manager的页面管理端的war包(在motan-manager的target文件下找到打好的war包):

motanä¸zookeeperæ¡æ¶

单独找一个tomcat，将其放入webapp文件下

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打开浏览器http://localhost:8080/motan-manager-0.2.2-SNAPSHOT：

motanä¸zookeeperæ¡æ¶

到此为止motan的管理平台就搭建好了，下面就搭建基于zookeeper为注册中心的RPC demo

1）首先先启动一个简单的zookeeper实例，在windows下简单的启动一个，写个demo，不需要集群

motanä¸zookeeperæ¡æ¶

打开eclipse，搭建两个简单的maven项目：

motanä¸zookeeperæ¡æ¶

motan-provider为服务提供端，motan-client服务调用端。两个项目的依赖基本上一样的：

<properties>       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>       <motan.version>0.2.1</motan.version>   
</properties>      
<dependencies>       <dependency>           <groupId>com.weibo</groupId>           <artifactId>motan-core</artifactId>           <version>${motan.version}</version>       </dependency>       <dependency>           <groupId>com.weibo</groupId>           <artifactId>motan-transport-netty</artifactId>           <version>${motan.version}</version>       </dependency>          <dependency>           <groupId>com.weibo</groupId>           <artifactId>motan-registry-zookeeper</artifactId>           <version>${motan.version}</version>       </dependency>          <dependency>           <groupId>com.weibo</groupId>           <artifactId>motan-springsupport</artifactId>           <version>${motan.version}</version>       </dependency>       <dependency>           <groupId>org.springframework</groupId>           <artifactId>spring-context</artifactId>           <version>4.2.4.RELEASE</version>       </dependency>       <dependency>           <groupId>org.slf4j</groupId>           <artifactId>slf4j-api</artifactId>           <version>1.5.8</version>       </dependency>          <dependency>           <groupId>org.slf4j</groupId>           <artifactId>slf4j-log4j12</artifactId>           <version>1.5.8</version>       </dependency>          <dependency>           <groupId>log4j</groupId>           <artifactId>log4j</artifactId>           <version>1.2.14</version>       </dependency>   
</dependencies>

服务提供端motan-provider的编写

1）我们写一个简单的接口HelloService：

package com.motan.rpc.service;      
public interface HelloService {              public String hello(String str);      }   
}

HelloSerivce简单的实现类HelloServiceImpl：

package com.motan.rpc.service;      
public class HelloServiceImpl implements HelloService {          public String hello(String str) {           return "hello " + str;       }             
}

然后在src/main/resources下配置spring-motan-provider.xml

<?xml version="1.0" encoding="utf-8"?><beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:motan="http://api.weibo.com/schema/motan" 
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd  
http://api.weibo.com/schema/motan http://api.weibo.com/schema/motan.xsd">  <!-- spring管理的服务具体实现 -->  <bean id="serviceImpl" class="com.bazinga.study.motan.rpc.service.HelloServiceImpl"/>  <!-- 注册中心的配置 -->  <motan:registry regProtocol="zookeeper" name="zkRegistry" address="127.0.0.1:2181" connectTimeout="2000"/>  <!-- 协议配置。为防止多个业务配置冲突，推荐使用id表示具体协议。-->  <motan:protocol id="demoMotan" default="true" name="motan" maxServerConnection="80000" 
maxContentLength="1048576" maxWorkerThread="800" minWorkerThread="20"/>  <!-- 服务的默认配置 group：标识服务的分组 module：标识模块信息 registry：标识service使用的注册
中心，与motan:registry中的name对应  -->  <motan:basicService export="demoMotan:8002" group="lyncc-motan-demo-rpc" 
accessLog="true" shareChannel="true" module="motan-demo-rpc" application="myMotanDemo" 
registry="zkRegistry" id="serviceBasicConfig"/>  <!-- 要暴露的服务，唯一标识是integerface -->  <motan:service interface="com.bazinga.study.motan.rpc.service.HelloService" 
ref="serviceImpl" export="demoMotan:8001" basicService="serviceBasicConfig"/> 
</beans>

注意此时你的IDE可能会报错，不识别<motan:registry>这些标签，解决方案：

Window-->Preferences--->XML:

motanä¸zookeeperæ¡æ¶

选中我们刚才冲源码包中获取到的motan.xsd,然后key type选择Schema location 最最关键的就是key值了：http://api.weibo.com/schema/motan.xsd

这个值要与你命名空间中的值一样：

motanä¸zookeeperæ¡æ¶

重新打开spring-motan-provider.xml文件就不报错了~

好了，我们继续，编写provider的启动类ProviderStarter：

package com.motan.rpc.quickstart;      
import org.springframework.context.ApplicationContext;   
import org.springframework.context.support.ClassPathXmlApplicationContext;      
import com.weibo.api.motan.common.MotanConstants;   
import com.weibo.api.motan.util.MotanSwitcherUtil;      
public class ProviderStarter {              public static void main(String[] args) {           ApplicationContext applicationContext = new ClassPathXmlApplicationContext("classpath:spring-motan-provider.xml");           MotanSwitcherUtil.setSwitcherValue(MotanConstants.REGISTRY_HEARTBEAT_SWITCHER, true);           System.out.println("server start...");       }      
}

启动该类：

motanä¸zookeeperæ¡æ¶

此时再打开motan-manager的管理页面：

motanä¸zookeeperæ¡æ¶

可以查询到我们刚才注册好的服务，并且可以看到Server的服务者的个数是1个，我们开始编写motan-client的编写：

1）先把motan-provider端的HelloSerivce接口复制到motan-client，package的目录也要一样，因为接口的绝对路径被认为服务的唯一标识

2）在motan-client的src/main/resources文件夹下新建文件spring-motan-client.xml

<?xml version="1.0" encoding="utf-8"?><beans xmlns="http://www.springframework.org/schema/beans" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:motan="http://api.weibo.com/schema/motan" 
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
http://api.weibo.com/schema/motan http://api.weibo.com/schema/motan.xsd">  <motan:registry regProtocol="zookeeper" name="registry" address="127.0.0.1:2181"/>  <!-- motan协议配置 -->  <motan:protocol default="true" name="motan" haStrategy="failover" 
loadbalance="roundrobin" maxClientConnection="10" minClientConnection="2"/>  <!-- 通用referer基础配置 -->  <motan:basicReferer requestTimeout="200" accessLog="true" retries="2" group="lyncc-motan-
demo-rpc" module="motan-demo-rpc" application="myMotanDemo" protocol="motan" 
registry="registry" id="motantestClientBasicConfig" throwException="false" check="true"/>  <motan:referer id="remoteService" interface="com.bazinga.study.motan.rpc.service.HelloService" 
connectTimeout="300" requestTimeout="300" basicReferer="motantestClientBasicConfig"/> 
</beans>

3）编写启动类：

package com.motan.rpc.quickstart;      
import org.springframework.context.ApplicationContext;   
import org.springframework.context.support.ClassPathXmlApplicationContext;      
import com.bazinga.study.motan.rpc.service.HelloService;      
public class ClientStart {              public static void main(String[] args) {           ApplicationContext ctx = new ClassPathXmlApplicationContext("classpath:spring-motan-client.xml");           HelloService service = (HelloService) ctx.getBean("remoteService");           for(int i = 0;i< 50;i++){               System.out.println(service.hello("motan " + i));           }       }      
}

4）log4j.properties

log4j.rootLogger=warn  
log4j.logger.info=info,infofile  
log4j.logger.warn=warn,warnfile  
log4j.logger.error=error,errorfile  
log4j.logger.profile=info,profile  log4j.logger.trace=trace,tracefile  
log4j.logger.accessLog=debug,accessfile  
log4j.logger.serviceStatsLog=info,serviceStatsLog  log4j.appender.tracefile=org.apache.log4j.DailyRollingFileAppender   
log4j.appender.tracefile.file=./logs/client/trace.log  
log4j.appender.tracefile.DatePattern='.'yyyyMMdd  
log4j.appender.tracefile.layout=org.apache.log4j.PatternLayout  
log4j.appender.tracefile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n  log4j.appender.accessfile=org.apache.log4j.DailyRollingFileAppender   
log4j.appender.accessfile.file=./logs/client/access.log  
log4j.appender.accessfile.DatePattern='.'yyyyMMdd  
log4j.appender.accessfile.layout=org.apache.log4j.PatternLayout  
log4j.appender.accessfile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n  log4j.appender.stdout=org.apache.log4j.ConsoleAppender  
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout  
log4j.appender.stdout.layout.ConversionPattern=%p %d{yy/MM/dd HH:mm:ss} %-50.50c(%L) - %m%n  log4j.appender.infofile=org.apache.log4j.DailyRollingFileAppender   
log4j.appender.infofile.file=./logs/client/info.log  
log4j.appender.infofile.DatePattern='.'yyyyMMdd-HH  
log4j.appender.infofile.layout=org.apache.log4j.PatternLayout  
log4j.appender.infofile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n  log4j.appender.warnfile=org.apache.log4j.DailyRollingFileAppender   
log4j.appender.warnfile.file=./logs/client/warn.log  
log4j.appender.warnfile.DatePattern='.'yyyyMMdd  
log4j.appender.warnfile.layout=org.apache.log4j.PatternLayout  
log4j.appender.warnfile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n  log4j.appender.errorfile=org.apache.log4j.DailyRollingFileAppender   
log4j.appender.errorfile.file=./logs/client/error.log  
log4j.appender.errorfile.DatePattern='.'yyyyMMdd  
log4j.appender.errorfile.layout=org.apache.log4j.PatternLayout  
log4j.appender.errorfile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p] %m%n  #profile  
log4j.appender.profile=org.apache.log4j.DailyRollingFileAppender   
log4j.appender.profile.file=./logs/client/profile.log  
log4j.appender.profile.DatePattern='.'yyyyMMdd-HH  
log4j.appender.profile.layout=org.apache.log4j.PatternLayout  
log4j.appender.profile.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} %m%n  #serviceStats  
log4j.appender.serviceStatsLog=org.apache.log4j.DailyRollingFileAppender  
log4j.appender.serviceStatsLog.file=./logs/client/serverserviceStatsLog.log  
log4j.appender.serviceStatsLog.DatePattern='.'yyyyMMdd  
log4j.appender.serviceStatsLog.layout=org.apache.log4j.PatternLayout  
log4j.appender.serviceStatsLog.layout.ConversionPattern=%-d{HH:mm:ss} %m%n

启动ClientStart.java